Wurkkos FC11 2700K Flashlight Review

The Wurkkos FC11 2700K 18650 Flashlight is somewhat well covered by reviews lately, but I was intrigued enough by this light to convince Wurkkos to send one for review.  I was particularly interested in the 2700K version, and that’s what they sent.  Read on for some thoughts and testing!


Official Specs and Features

Here’s a link to the amazon product page.

Versions

I believe there’s only one body for the FC11.  But I know of at least two emitter temperature options:  2700K and 4000K.  I think there may also be a 5000K, but I’m less certain on that.

Price

Looks like the current price is $29.97 on amazon.  (referral link here).


Short Review of the Wurkkos FC11 2700K 18650 Flashlight

This light is definitely worth $30, and I recommend you buying one!

Wurkkos FC11 2700K 18650 Flashlight Long Review

The Big Table

Wurkkos FC11 2700K 18650 Flashlight

Emitter: Samsung LH351d (2700K, 90CRI)
Price in USD at publication time: $29.97 at amazon (referral link)
Cell: 1×18650 (included)
Turbo Runtime Graph High Runtime Graph
LVP? Switch warning
Switch Type: E-Switch
Quiescent Current (mA): 1.46
On-Board Charging? Yes
Charge Port Type: USB-C
Charge Graph
Power off Charge Port with cell: one mode
without cell: one mode
Claimed Lumens (lm) 1300
Measured Lumens (at 30s) 766 (58.9% of claim)*
Candela per Lumen 7.8
Claimed Throw (m) 144
Candela (Calculated) in cd (at 30s) 173lux @ 5.248m = 4765cd
Throw (Calculated) (m) 138.1 (95.9% of claim)*
All my Wurkkos reviews!
  • Measurement disclaimer:  I am an amateur flashlight reviewer.  I don’t have $10,000 or even $1,000 worth of testing equipment.  I test output and such in PVC tubes!!  Please consider claims within 10% of what I measure to be perfectly reasonable (accurate, even).

What’s Included

wurkkos fc11 flashlight what's included

  • Wurkkos FC11 2700K 18650 Flashlight
  • Wurkkos 3000mAh 18650
  • Charge cable (USB to USB-C)
  • Lanyard
  • Spare o-rings (2)
  • Manual etc

Package and Manual

wurkkos fc11 flashlight manual

Build Quality and Disassembly

wurkkos fc11 flashlight feature photo

I would describe the build quality of this inexpensive light as “good” or even “very good.”

It’s maybe twice the price of something like a Convoy S2+, and the build quality is definitely much better.

wurkkos fc11 flashlight emitter

The standout for me is that this one is available as 2700K 90CRI, which is great.

wurkkos fc11 flashlight tailcap

wurkkos fc11 flashlight head and switch

wurkkos fc11 flashlight switch

The body doesn’t have knurling, but does have rings for grip.  They don’t do a whole lot to aid in holding, though.

wurkkos fc11 flashlight body

The tailcap has appropriate grip, however, which aids in removal.

wurkkos fc11 flashlight tailcap

On the head are shallow cooling fins.

wurkkos fc11 flashlight switch profile

wurkkos fc11 flashlight pocket clip profile

wurkkos fc11 flashlight lanyard hole

A press-in charge port cover keeps the USB-C charge port safe from debris and water.

wurkkos fc11 flashlight charge port cover

wurkkos fc11 flashlight charge port cover open

wurkkos fc11 flashlight switch detail

wurkkos fc11 flashlight cooling fins

Threads on the FC11 are square cut, moderately long, and lightly (if at all) lubed.

wurkkos fc11 flashlight tailcap off

While the pocket clip can install in only one end, the cell tube is actually reversible – threading is the same on both ends.

wurkkos fc11 flashlight cell tube

A magnet is in the tailcap, and this magnet is adequate strength for holding even in a horizontal position.

wurkkos fc11 flashlight tailcap off with magnet

Both head and tail have big beefy springs, and if you notice carefully on the head end, there’s a “+” for cell direction.

wurkkos fc11 flashlight head and tail springs

wurkkos fc11 flashlight cell installed

wurkkos fc11 flashlight indicating switch

wurkkos fc11 flashlight on low

Size and Comps

Officially the size is:

116.23mm x 27mm, and 65g (without cell).

If a light will headstand, I’ll show it here (usually the third photo).  If a light will tailstand, I’ll show that here, too (usually the fourth photo).

Here’s the test light with the venerable Convoy S2+.  Mine’s a custom “baked” edition Nichia 219b triple.  A very nice 18650 light.

And here’s the light beside my custom engraved TorchLAB BOSS 35, an 18350 light.  I reviewed the aluminum version of that light in both 35 and 70 format.

wurkkos fc11 flashlight beside torchlab boss 35

This image below is just all in fun – the cell tube is completely gone here.  But wouldn’t this be a fun little light!  (Shorter than an 18350 version, though.)

wurkkos fc11 flashlight with cell tube removed - joke photo

Retention and Carry

Mainly the FC11 will be carried using the included friction fit pocket clip, which installs on the tail end.  This means bezel down carry is the default.

It’s a friction fit clip, like I said, so…. clip hug!

wurkkos fc11 flashlight pocket clip hug

But the cell tube is reversible, so if you wish to have bezel up carry, then just flip the cell tube.  The balance will be a little off, but it works.  The location of the clip on the body with “bezel up” carry would make this a reasonable hatlight solution.

wurkkos fc11 cell tube

Another option for retaining the FC11 is the included lanyard, which attaches through this hole in the tailcap.  There are also places on the pocket clip to attach the lanyard, but as it’s a friction fit clip, I’d recommend sticking with the hole in the tailcap.

wurkkos fc11 flashlight lanyard hole

Finally we have the tailcap magnet, which holds the FC11 quite securely on the right base.

wurkkos fc11 flashlight tailcap magnet

Power and Runtime

Voltage range for the FC11 is 2.7V-4.2V, so that means it runs on a single lithium ion cell.  Included with the purchase of the Wurkkos FC11 is a 3000mAh 18650.

wurkkos fc11 flashlight 3000mAh 18650

This cell is a button top, and appears standard in every way.

Since the FC11 has springs on the head and tail, there’s nothing preventing usage of any type 18650.  Flat top, button top, protected, unprotected – they all should work fine.

wurkkos fc11 flashlight 3000mAh 18650 beside light

Cell installation is normal – positive end toward the head.  You can remove the tailcap or the head to install the cell.

wurkkos fc11 flashlight 3000mAh 18650 installed

Provided below are a few runtimes.  The claim of 1300 lumens is almost certainly for the 4000K version.  It doesn’t seem that Wurkkos provided specs for this very warm and higher CRI edition.  Both of those factors will mean that we can expect the output to be less, and that’s what we see in fact.  I find more issue with not speccing the 2700K option, than for “being wrong” or “misleading” necessarily.

The modes aren’t very well regulated.

wurkkos fc11 flashlight 3000mAh 18650 runtime graph turbo

Both Turbo and High have a big stepdown after a minute or two, and then the output just trails off.  At around 2.9V or so, the switch begins to warn of low voltage.

wurkkos fc11 flashlight 3000mAh 18650 runtime graph high

wurkkos fc11 flashlight 3000mAh 18650 runtime graph medium

When the light is turned on, the indicating switch will light momentarily to advise of cell voltage, as follows:
Green:  Power >30%
Red: Power <30%
Red Flashing: Recharge cell as soon as possible

Charging

A USB-C port is used for charging, and it’s on the head and opposite the switch.

A press in cover protects the port.  The cover is really quite nice.

Wurkkos provides a USB to USB-C cable, too.

Charging looks pretty good, if a little slow at around 1A. The time required is over 4 hours, and termination voltage is a little low at around 4.15V.

wurkkos fc11 flashlight charge graph

Modes and Currents

Mode Mode Claimed Output (lm) Claimed Runtime Measured Lumens Tailcap Amps
Turbo 1300 1h20m 766 4.36
High 700 2h45m 452 1.72
Mid 300 9h 177 0.62
Low 50 45h 35 0.15
Eco 2 275h ~ 0.01

Pulse Width Modulation

All the lower modes and I think even Turbo utilize pulse width modulation.  It’s fast, and I don’t notice it, though.

For reference, here’s a baseline shot, with all the room lights off and almost nothing hitting the sensor.  And here’s the worst PWM light I have ever owned.  Also one of the very first lights I ordered directly from China!

User Interface and Operation

A single switch is used to control the FC11.  It’s an e-switch in the head of the light, and has indicating emitters under the translucent black cover.

wurkkos fc11 flashlight switch detail

Texture is one way to differentiate the switch from the charge port cover, but also the charge port cover has more of a rounded (off the body) feel, while the switch feels flatter.

wurkkos fc11 flashlight switch profile

Below, the switch is indicating green.

wurkkos fc11 flashlight switch indicating in green

There are two mode groups on the FC11.  The default is stepped, which has five output levels, and no ramping.  The second utilizes ramping.

Here’s a UI table for Group 1!

State Action Result
Off Hold Eco
Off Click On (Mode Memory)
Off Double Click Turbo
On Click Off (Except in Turbo)
On Hold Mode Cycle (Eco>Low>Mid>High)
Turbo Click Previous Mode
Off Hold 3s Switch to Group 2
Off Click 4x Lockout – main emitter will still respond by blinking quickly twice on click
Lockout Click 4x Unlock to previous mode.
Any Click 3x Strobe
Strobe Click Return to previous mode.

Here’s a UI table for Group 2!

State Action Result
Off Hold Eco
Off Click On (Mode Memory)
Off Double Click Turbo
On Click Off (Except in Turbo)
On Hold Ramp to highest output*
Turbo Click Previous Mode
Off Hold 3s Switch to Group 2
Off Click 4x Lockout – main emitter will still respond by blinking quickly twice on click
Lockout Click 4x Unlock to previous mode.
Any Click 3x Strobe
Strobe Click Return to previous mode.
  • Ramp can sort of do multiple things, depending.  The first ramp after the light is turned on will always be upward (unless you start in Turbo by double clicking from off.)  And ramp will most often be “up” unless you hold the switch again within around 2 seconds of ramping up, and then the ramp will be down.

LED and Beam

Wurkkos uses a Samsung LH351d in the FC11.  In this case it’s a 2700K emitter, which means it’s warm white (WW), or “very warm.”

wurkkos fc11 flashlight emitter

I consider “very warm” lights to be fantastic for around the house at night lights.  Lights that won’t be abrasive, and potentially disturb sleepers with their coolness.  The 2700K of this light is perfect in that regard.  Also the high CRI (or “higher” CRI at 90) is great for this purpose, too.

wurkkos fc11 flashlight on low

These beamshots are always with the following settings:  f8, ISO100, 0.3s shutter, and manual 5000K exposure.

Tint vs BLF-348 (KillzoneFlashlights.com 219b version) (affiliate link)

Test light is on the left!

I compare everything to the KillzoneFlashlights.com 219b BLF-348, because it’s inexpensive and has the best tint!

Conclusion

What I like

  • 2700K is just great.
  • Also a high CRI emitter
  • Complete package for under $30 is a deal
  • Ramping UI option for those who like thatl
  • USB-C charging is forward-thinking

What I don’t like

  • The pocket clip is not fantastic
  • Charging is a little slow

Notes

  • This light was provided by Wurkkos for review. I was not paid to write this review.
  • This content originally appeared at zeroair.org.  Please visit there for the best experience!
  • For flashlight related patches, stickers, and gear, head over to PhotonPhreaks, another site where I write!
  • Use my amazon.com referral link if you’re willing to help support making more reviews like this one!
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Author: zeroair

3 thoughts on “Wurkkos FC11 2700K Flashlight Review

  1. Interesting. It heats up more than Convoy S2+ SST20 2700K. I thought the LH351d emitter is more efficient than SST20

  2. I recently opted for this same tint. It’s a great light for outside and at night. Been loving it so far! I’m tempted to pick up another but the clip is a real downfall for me.

    1. I hear ya! I love the 2700K. Super great for wandering around the house at night. Clip hasn’t really bothered me but then, for my uses of this light, I don’t really clip.

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